I got a new iPod Classic yesterday to replace a stolen 4th G iPod. I plug the new iPod into my Mac (personal computer), and it says it is formatting it for Mac. I bring the new iPod to work today (windows xp) to put my music from work on it, and it says it needs to format it to windows. I don't want to lose my songs from my Mac computer that i put on my ipod. is there a way to format the ipod where i can use it on both Mac OS and Windows XP? Thanks.